先给大家展示下效果图，如果大家感觉还不错，请参考实现代码。
效果图如下所示：
源码
https://github.com/YouXianMing/Swift-Animations
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
//// MixedColorProgressViewController.swift// Swift-Animations//// Created by YouXianMing on 16/8/21.// Copyright © 2016年 YouXianMing. All rights reserved.//import UIKitclass MixedColorProgressViewController: NormalTitleViewController {private var upView : UIView!private var upLabel : UILabel!private var downView : UIView!private var downLabel : UILabel!private var timer : GCDTimer! = GCDTimer(inQueue: GCDQueue.mainQueue)override func setup() {super.setup()downView = UIView(frame: CGRectMake(0, 0, 220, 17))downView.center = (contentView?.middlePoint)!downView.layer.cornerRadius = 2downView.backgroundColor = UIColor.whiteColor()downView.layer.masksToBounds = truecontentView?.addSubview(downView)downLabel = UILabel(frame: downView.bounds)downLabel.font = UIFont.HelveticaNeueThin(12.0)downLabel.text = "YouXianMing - iOS Programmer"downLabel.textColor = UIColor.redColor()downLabel.textAlignment = .CenterdownView.layer.borderWidth = 0.5downView.layer.borderColor = UIColor.redColor().CGColordownView.addSubview(downLabel)upView = UIView(frame: CGRectMake(0, 0, 220, 17))upView.center = (contentView?.middlePoint)!upView.layer.cornerRadius = 2upView.backgroundColor = UIColor.redColor()upView.layer.masksToBounds = truecontentView?.addSubview(upView)upLabel = UILabel(frame: upView.bounds)upLabel.font = UIFont.HelveticaNeueThin(12.0)upLabel.text = "YouXianMing - iOS Programmer"upLabel.textColor = UIColor.whiteColor()upLabel.textAlignment = .CenterupView.addSubview(upLabel)weak var wself = selftimer.event({UIView.animateWithDuration(0.5, delay: 0, usingSpringWithDamping: 3, initialSpringVelocity: 0, options: .CurveEaseInOut, animations: {wself?.upView.width = CGFloat(arc4random() % 220)}, completion: nil)}, timeIntervalWithSeconds: 1, delayWithSeconds: 1)timer.start()}} |
以上所述是小编给大家介绍的Swift中通过叠加UILabel实现混合进度条的方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：http://www.cnblogs.com/YouXianMing/archive/2016/08/21/5793549.html
